Endodontics · single question
Regarding an atretic (calcified/obliterated) canal, which statement is TRUE?
Show answer and explanation
Correct answer: C. The pulp shows reduced sensibility on cold testing
- A. The canal appears narrowed/obliterated rather than clearly visible on the radiograph.
- B. A canal space persists histologically even when not radiographically detectable.
- C. Correct. Progressive calcification reduces the responsive pulp tissue, so the tooth gives a diminished or absent response to cold.
- D. Most calcified canals stay asymptomatic and are monitored.